[Rubycocoa-talk] Binding to subclasses of NSArrayController

[Brian M. <ma...@ex...>]

I have an app that works correctly when a table column is bound to an  
NSArrayController. Now suppose I subclass NSArrayController like this:

class MyController < OSX::NSArrayController
end

If I switch the column's binding to MyController, leaving everything  
else the same, the bindings don't work in various interesting ways.

I suspect that (1) something - IB? NSTableColumn? the data cell -  
knows the kind of thing it's bound to and adjusts its behavior  
accordingly, and (2) doesn't understand MyController's superclass.

Could that be correct? If so, how do I get around the problem? If not,  
what's the real problem?

-----
Brian Marick, independent consultant
Mostly on agile methods with a testing slant
www.exampler.com, www.exampler.com/blog, www.twitter.com/marick